fix mixed platform directory mapping (#106)

* sync plex platform and platform version * fix mixed-platform path replacements
2021-03-28 01:40:40 +00:00
parent 22c4fe2a27
commit 104d4a0cbd
15 changed files with 2075 additions and 35 deletions
@@ -0,0 +1,67 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Threading.Tasks;
+using ErsatzTV.Core.Domain;
+using ErsatzTV.Core.Interfaces.Plex;
+using ErsatzTV.Core.Interfaces.Repositories;
+using ErsatzTV.Core.Interfaces.Runtime;
+using LanguageExt;
+using Microsoft.Extensions.Logging;
+
+namespace ErsatzTV.Core.Plex
+{
+    public class PlexPathReplacementService : IPlexPathReplacementService
+    {
+        private readonly ILogger<PlexPathReplacementService> _logger;
+        private readonly IMediaSourceRepository _mediaSourceRepository;
+        private readonly IRuntimeInfo _runtimeInfo;
+
+        public PlexPathReplacementService(
+            IMediaSourceRepository mediaSourceRepository,
+            IRuntimeInfo runtimeInfo,
+            ILogger<PlexPathReplacementService> logger)
+        {
+            _mediaSourceRepository = mediaSourceRepository;
+            _runtimeInfo = runtimeInfo;
+            _logger = logger;
+        }
+
+        public async Task<string> GetReplacementPlexPath(int libraryPathId, string path)
+        {
+            List<PlexPathReplacement> replacements =
+                await _mediaSourceRepository.GetPlexPathReplacementsByLibraryId(libraryPathId);
+            Option<PlexPathReplacement> maybeReplacement = replacements
+                .SingleOrDefault(
+                    r =>
+                    {
+                        string separatorChar = IsWindows(r.PlexMediaSource) ? @"\" : @"/";
+                        return path.StartsWith(r.PlexPath + separatorChar);
+                    });
+            return maybeReplacement.Match(
+                replacement =>
+                {
+                    string finalPath = path.Replace(replacement.PlexPath, replacement.LocalPath);
+                    if (IsWindows(replacement.PlexMediaSource) && !_runtimeInfo.IsOSPlatform(OSPlatform.Windows))
+                    {
+                        finalPath = finalPath.Replace(@"\", @"/");
+                    }
+                    else if (!IsWindows(replacement.PlexMediaSource) && _runtimeInfo.IsOSPlatform(OSPlatform.Windows))
+                    {
+                        finalPath = finalPath.Replace(@"/", @"\");
+                    }
+
+                    _logger.LogInformation(
+                        "Replacing plex path {PlexPath} with {LocalPath} resulting in {FinalPath}",
+                        replacement.PlexPath,
+                        replacement.LocalPath,
+                        finalPath);
+                    return finalPath;
+                },
+                () => path);
+        }
+
+        private static bool IsWindows(PlexMediaSource plexMediaSource) =>
+            plexMediaSource.Platform.ToLowerInvariant() == "windows";
+    }
+}